A
lot of things happened in the early 70s:
- Many overseas markets opened to more outsourcing. Nixon "going to China" was one of the big ones.
- The rest of the world had pretty much fully recovered from WWII and started being more competitive with US manufacturing.
- The collapse of Bretton Woods and the removal of the gold peg for the US dollar freed central banks to pursue aggressive monetary policy.
- Automation really took off in the 1970s, and the computer revolution really got going.
- Women entered the work force in large numbers. In case anyone misreads: I am not against this. I'm just pointing out the supply and demand effects.
- Unions started declining for numerous reasons including the rise of anti-union politics and corruption in unions themselves.
- Increased racial equality is another thing I'm not against, but I am forced to point out that it increases the supply of labor in many labor markets that had been at least partly closed to non-whites.
- Finally, more immigration is definitely on the list too.
... there's a lot more, but those are the big ones. Almost everything I listed is deflationary to labor prices. So many things hit in the 70s it's like the floor dropped out. It's amazing US labor has managed to hang on at all.